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1、1/9 一、选择题（从下列各题4 个备选答案中选出一个或二个正确答案，并将其代号写在题干后面的括号内。）1、8051基本型单片机内部程序存储器容量为（）。A、16KB B、8KB C、4KB D、128B 2、8051基本型单片机内部RAM 容量为（）。A、16KB B、8KB C、4KB D、128B 3、当优先级的设置相同时，若以下几个中断同时发生，（）中断优先响应。A、外部中断0 B、T1 C、串口 D、T0 4、在 80C51 单片机应用系统中，可以作为时钟输出的是（）引脚。A、EA B、RST C、ALE D、PSEN5、为了能够使MCS-51 单片机在正常工作中及时服务于多个外设，
2、以下传送方式最适用的是（）。A、异步（查询）传送 B、同步（无条件）传送 C、DMA 传送 D、中断传送6、已知 1 只共阴极LED 显示器，其中a 笔段为字形代码的最低位，若需显示数字1，它的字形代码应为()。A、06H B、0F9H C、30H D、0CFH 7、已知1 只共阳极LED 显示器，其中a 笔段为字形代码的最低位，若需显示小数点“.”，它的字形码应为()。A、7FH B、0F9H C、30H D、80H 8、已知1 只共阴极LED 显示器，其中a 笔段为字形代码的最低位，若需显示小数点“.”，它的字形码应为()。A、80H B、0F9H C、30H D、7FH 9、若 P1 口
3、接有一个4 4的行列键盘，则P1口一定有（）。A、8 位输入口 B、8 位输出口 C、4 位输入口 D、4 位输出口10、8051 单片机的定时器T1 用作定时方式时是（）。A、以内部时钟频率为定时基准，12个时钟周期加1 B、以内部时钟频率为定时基准，1 个机器周期加1 C、以外部脉冲为定时基准，12 个脉冲加1 D、以外部脉冲为定时基准，每个脉冲加1 2/9 11、DAC0832 在单片机系统中是一种（）器件。A、输入 B、输出 C、将数字量转换成模拟量 D、将模拟量转换成数字量12、家用电器中使用的单片机应属于计算机的（）。A、辅助设计应用 B.测量、控制应用 C.数值计算应用 D.数据
4、处理应用13、若 82C55 的 PC口接有一个44 的行列键盘，则PC 口一定有（）。A、8位输入口 B、8 位输出口 C、4 位输入口 D、4 位输出口二、填空（请将正确答案填入空格内）1、ADC0809 的作用是将转换成数字量。2、DAC0832 的作用是将转换成模拟量。3、除了单片机这一名称之外，单片机还可称为微控制器或嵌入式微控制器。4、如果系统时钟频率为12MHz，定时器/计数器工作在方式1 下，其单次定时最长的定时时间为。定时器/计数器工作在方式2 下，其单次定时最长的定时时间为。5、使用双缓冲方式的D/A 转换器，可实现多路模拟信号的输出。6、在 data区定义字符变量val1
5、 的 C51 语句为。7、在 idata 区定义整型变量val2 的 C51 语句为。8、在 xdata 区定义无符号字符型数组val34 的 C51 语句为。9、在 xdata 区定义一个指向char类型的指针px 的 C51 语句为。10、定义可位寻址变量flag 的 C51 语句为。11、定义特殊功能寄存器变量P3（其物理地址是0 xb0）的 C51 语句为。12、定义特殊功能寄存器变量P1（其物理地址是0 x90）的 C51 语句为。13、如果系统时钟频率为3MHz，定时器/计数器工作在方式1 下，其最大的定时时间为。14、使用双缓冲方式的D/A 转换器，可实现多路模拟信号的输出。三、
6、简答题（回答要点，并作简明扼要的解释）1、单片机内集成了那些组成计算机的基本功能部件？文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10
7、A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T
8、3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7
9、E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C
10、10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J
11、9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8
12、F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H53/9 2、什么是单片机？3、C51语言中的中断函数与一般的函数有什么不同？4、C51语言采用什么形式对绝对地址进行访问。？5、简述 MCS-51 响应中断的条件。6、简述 MC
13、S-51 响应中断的全过程。7、在数码管接口设计技术的术语中，什么叫显示缓冲区？显示缓冲区一般放在哪里？显示缓冲区中通常存放的是什么？8、LED 的静态显示方式与动态显示方式有何区别？各有什么优缺点？9、键盘接口需要解决哪几个问题？10、什么叫“窜键”？CPU 处理窜键的原则是什么？CPU 处理按键抖动的方法是什么？11、决定 ADC0809 模拟电压输入路数的引脚有那几条？12、DAC0832 和 8051接口时有哪三种工作方式。13、定时器/计数器用作计数器模式时，对外界计数频率有何限制？14、AT89S51的 P1、P2、P3口的驱动能力为多少？要想获得较大的输出驱动能力，采用低电平输出
14、还是高电平输出？15、定时器/计数器用作计数器模式时，对外界计数频率有何限制？文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6
15、J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D
16、7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5
17、文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2
18、L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O
19、1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6
20、H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H54/9 四、程序分析题（阅读给出的程序后回答问题）1、一 个MCS-51 单 片 机 系 统 的 时 钟 频 率 为12MHz，已 知 指 令“MOV Rn,#data”、“DJNZ R
21、n,rel”、“NOP”、“RET”的机器周期数分别为1、2、1、2，下面是一个延时1ms 的汇编子程序，请给每条指令加注释说明它的执行次数和时间。YS1ms:SETB RS0 MOV R2,#10 LOOP1:MOV R3,#48 DJNZ R3,$DJNZ R2,LOOP1 MOV R2,#2 DJNZ R2,$CLR RS0 RETMOV A,30H JZ DONE JNB ACC.7,POSI MOV A,#0FFH SJMP DONE POSI:MOV A,#01H DONE:MOV 31H,A SJMP$END 1、说明这段程序的作用。2、设程序执行前，内部RAM 30H 单元的内
22、容是0FEH,执行以上程序后内部RAM 31H 的内容是多少？若把内部RAM 31H 的内容看作补码，其十进制真值又是多少。文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1
23、L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:
24、CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2
25、HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 Z
26、K1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编
27、码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J
28、2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H55/9 2、MOV A,30H MOV B,#100 DIV AB MOV 31H,A MOV A,B MOV B,#10 DIV AB M
29、OV 32H,A MOV 33H,B END 1、说明这段程序的作用。2、设程序执行前，内部RAM 30H 单元的内容是0FEH,执行以上程序后内部RAM 31H、32H、33H 的内容分别是多少？。文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F
30、7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1
31、C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5
32、J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L
33、8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:C
34、V1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 H
35、V5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H56/9 五、设计题1、一 个MCS-51 单 片 机 系 统 的
36、 时 钟 频 率 为12MHz，已 知 指 令“MOV Rn,#data”、“DJNZ Rn,rel”、“NOP”、“RET”的机器周期数分别为1、2、1、2，请用汇编语言编写一个能延时1ms、2ms 的子程序，并在每条指令后用注释说明该指令执行的次数和时间。2、ADC0809 与 8051的接口连接图如下图，请问：（1）如何启动 ADC0809 对 IN0 的输入进行 AD 转换？（2）8051 如何知道 ADC0809 转换结束？执行什么样的程序段可以将转换的结果存入内部 RAM 20H 单元？文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV
37、1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV
38、5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1
39、L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:
40、CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2
41、HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 Z
42、K1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编
43、码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H57/9 文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A
44、2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3
45、O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E
46、6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C1
47、0A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9
48、T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F
49、7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H5文档编码:CV1C10A2L6J2 HV5J9T3O1D7 ZK1L8F7E6H58/9 3、DA
50、C0832 与 8051的接口连接图如下图，请问：（1）如何启动 DAC0832 进行 DA 转换？（2）编写将数字量 50H 转换为模拟量的程序段。（3）设待转换数字量对应的十进制数为D，写出输出电压Vout 的表达式。4、请画出一种实用的51 单片机按钮复位电路。5、请画出一种实用的利用8051 内部的振荡器产生8051 单片机系统时钟的电路。6、设计一个简单的MCS-51 单片机应用系统，要求用8255 扩展 I/O 口，8255的 A 口用作输入，A 口每一位接一个开关，B 口用作输出，B 口每一位接一个发光二极管，用线选法产生8255 的片选信号，使8255 的端口基本地址为4000